Frog lungs are poorly developed. how does this relate to their skin being thin and moist?

An uplifted block of rock between two normal faults

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell